On March 13, 2021, Wuxi Huaguang Environment & Energy Group Co., Ltd. (stock code: 600475) issued an announcement saying that its controlling subsidiary Wuxi Guolian Environmental Science & Technology Co., Ltd. introduced the strategic investors Yangtze Ecology and Environment Co., Ltd. and Three Gorges Capital Holdings Co., Ltd. via capital and shares increase. The investment was structured as capital increase by means of non-public agreement.